0x00 0x64 0x10 0xdd # CHECK: dmuhu $2, $3, $4
0x00 0x64 0x10 0x9c # CHECK: dmul $2, $3, $4
0x00 0x64 0x10 0x9d # CHECK: dmulu $2, $3, $4
0x00 0x64 0x10 0xdd # CHECK: dmuhu $2, $3, $4
0x00 0x64 0x10 0x9c # CHECK: dmul $2, $3, $4
0x00 0x64 0x10 0x9d # CHECK: dmulu $2, $3, $4